55000040377 has 2 divisors, whose sum is σ = 55000040378. Its totient is φ = 55000040376.

The previous prime is 55000040339. The next prime is 55000040471. The reversal of 55000040377 is 77304000055.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53658942736 + 1341097641 = 231644^2 + 36621^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55000040377 is a prime.

It is not a weakly prime, because it can be changed into another prime (55000040077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27500020188 + 27500020189.

It is an arithmetic number, because the mean of its divisors is an integer number (27500020189).

Almost surely, 2^55000040377 is an apocalyptic number.

It is an amenable number.

55000040377 is a deficient number, since it is larger than the sum of its proper divisors (1).

55000040377 is an equidigital number, since it uses as much as digits as its factorization.

55000040377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14700, while the sum is 31.

The spelling of 55000040377 in words is "fifty-five billion, forty thousand, three hundred seventy-seven".